Machine for notching blanks



APPLICATION FILED JULY 9,1919.

Patented Jan. 31, 1922.

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APPLICATIOP.I FILED JULY 9.1919- Patented Jan. 31, 1922.

J. A. MOORE.

MACHINE FOR NOTCHING BLANKS.

APPLICATXOR FILED JULY 9| 1919.

Patented Jan. 31, 1922.

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MACHINE FOR NOTCHING BLANKS.

APPLIICATIVON man JULY 9.1.91.9.

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J. A. MOORE.

MACHINE FOR NOTCHING BLANKS.

APPLICATION EILED JULY 9,191.9

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APPLICATION HL'ED JULY 9.1919.

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MACHINE FOR NOTCHING BLANKS.

APPLICATION FILED 'JULY 9.1919.

Patented Jan. 31, 1922.

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J. A. MOORE.

MACHINE FOR NOTCHING BLANKS.

APPLICATION FILED JULY 9.1919.

Patented Jan. 31,1922.

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JOHN A. MOORE, or LOUISVILLE, KENTUCKY, Assrsnonmo T ara MENGEL COMPANY,or LOUISVILLE, KENTUCKY, A conronnrlorior'nnw JERSEY,

' MACHINE FOR" NOTCHING ,BLANKS.

Specification of Letters Patent.

Application filed Jui e, 1919. Serial No. 369,557}.

To all to 720m it may concern Be it known that I, JOHN A. Moore, a

citizen of the United States, residing at Louisville in the county ofJefferson and State of Kentucky, have invented certain new and usefulImprovements in Machines for N otching Blanks, of which the following isa specification.

This invention pertains to an improved machine for notching and cuttingblanks employed iii the making of packing cases, or. boxes. While themachine is adapted to the notching and cutting of stock of variousthicknesses, it is especially adapted for handling relatively heavyfiber board such as is now commonly employed in bent up or' formed casesor boxes.

The invention has for its main ob ect an arrangement of the shearingblades'or cutwhen the blank is positioned andthereafter, arrested whilethe finished blank is being.

fed outwardly and another blank brought to place.

With these and other objects in view, adetailed description or apreferred embodiment ofthe invention will be given, reference being hadto the annexed drawings, wherein:

Fig. l is a top plan view of the machine;

Fig. 2 a side elevation;

Fig. 3 a vertical longitudinal section on the line IIIIII of Fig. 1;

Fig. 4 a transverse vertical sectional view on the line IV-IV ofFig. 3;

Fig. 5 an end elevation of the machine as viewed from the intake end;

Fig. 6 a similar view of the discharge end;

Figs. 7, 8 and 9, detail views of the clutch releasing and engagingmeans which is caused to'function by the positioningot the stock orblank;

Patented Jan. 31, 1922. i

Fig.- 10 a detail View of one of the shear Fig; 11 a transverse sectionon the line 1 XI' XI i-Fig. 10;, i

Fig: 12' a detail view of'tliecuttereinthereof;

F ig. 13 a sectional view on the line XIII-XIII of Fig. 12';

Fig. 1 1a detail sectional view on the line XIV-'.XIV of Fig; 10; and

Fig. 15 a perspective view of thenotched and-cut blank;

The frame of the machine may be said to comprisetwo trough shaped baseor" foot ployed tocut th'estock or bl'a'nkat one end I pieces 1 andQ,and a pair of verticallydisposed plate-like members mounted in each baseand designated respectively by 3 andel and 5 and ththe plates oftheopposite pairs 1 being connected by stay rods 7" and 8. The plates 3and5, and tand 6, are likewise connected to eacli'other byhorizontallydisposed beams=9 and 10, seemore particularly Fig. 4, the plates beingprovided with inwardly projecting portions 11 which tlieends of thebeams'abut. The plates are preferably flanged so asto render them stiffand rigid.

To efl'ectadjustmentof the plates or frame members 3 and stand 5 and 6toward and from. eachother, I provide a screwthreaded shaft 12 for eachplate, the shafts passing through nuts 13 secured to the plates, Whilethe outer ends are journaled in bears,

ings. 14 securedto the base pieces 1 and 2.

Sprocket chains 15' passabout sprockets 16 secured to shafts 12 and byturning oneof said'shafts, as bythe application of a wrench thereto, thecompanion shaft will be likewise rotatedaiidtheframe elements 3 and 5 or4 and 6, as the case may. be, will be simultaneously movedin OIrOllttoward the center line of the machine. This adjustment is for thepurpose' of bringing the oppositely disposedseri'es'of shear or cutterblades closer together orspacing them furtherapart to vary the depth ofthe cuts or slots IHZLClG'lH the stock.

Secured upon the upper'face of each of the end plates orframes'is' abearing'17 and extending from the oppositely disposed pairs of bearings;and mounted therein are shafts 18 (two inznumber) said shaftslying-parallel to each othenandtothe medial line of the machine.Saidshaftscarry themovable shear blades whichare duplicated upon eachside of the machine and in part are similar on the same side of themachine; like blades and their allied and cooperating partswilltherefore be designated by the same reference numerals.

The blank, designated generally by B, is

in the instant case designed to be cut and notched'as shown in Fig."15,wherein there is formed in each side two similar cuts or notches 19 and20, and an intermediate notch 21, the root whereof is cut at an anglethe reverse of that of the others. The blank at the forward end is cutaway adjacent each side, as at 22, and the oppositeend has two somewhatwider pieces cut out, forming relative deep recesses 23, the reentrantangle whereof is a right angle. blades which produce the notches 19, 20and 21, and the cutaway sections or recesses 22 are alike in lformexcept for the fact that the angle formed on the ends of the movableblades and the cooperating fixed blades or die plates is reversed fortheproduction of 19 and 20 from those producing 21 and 22. The shearblades are designated by 2% and extend outwardly from a hub 25, see Fig.14, which is mounted on shaft 18, the hub being longitudinallyadjustable thereon and held in its adjusted position by a key 26 whichtakes in a key-way formed longitudinally olf the shaft and also in thehub. A. set screw 27 mounted in the hub and'bearing at its inner endupon to lock the key in place. The hub is embraced between and journaledin two collar like. members 28 which are formed as extensions of twohorizontally disposed arms 29-29, which are connected at their innerends by a cross piece 30 which rests upon the beam 9 (or 10) said crosspiecehaving an underlying hooked shaped member 31,

Fig. 10, which embraces the flange of the beam. Said hubs, arms andmember 31form a frame which is adjustable along the shaft '18 and thebeam, and upon which frame-is mounted and secured the fixed shearingblade or die, denoted by 32, see Figs. 1, 10 and 11..

The blade 2 1 is beveled upon its under face and the end thereof .isinclined, and

the die plate is inclined at its end to con-- form to the bevel of theend of the blade 24;. By reason of this arrangement a shearing action iseffected and the stock. is cut away cleanand with a minimumexpenditure'of I powerat any one time. Moreover to the same end thevarious blades are offset about the shaft and come into actionsuccessively.-

The cutter employed v to produce the recesses 23 is constructed in thesame: general manner. cutter as an extension of the hub,'fian arm 33,Figs. 2, 5 and 12, extends from the hub, and a block 34: is securedthereto.

T he cutters or the key serves plates 3 and 1, Fig. 5. .of the machinethe belts pass about pul- JleyS 56 and 57 mounted on a shaft 53 sup-Instead. of forming the movable Said arin' has secured to it oppositelydisposed blades 35 which coact with fixed shear blades 36 secured uponthe adjacent arms 29, said blades being connected at their inner ends bya cross blade of shearing element 37.

The blanks or sheets as they are fed to the machine are supposed to becut to the proper length at the pasting of blank forming machine, but insetting up the pasting machine, until the op rator gets the properlength of the sheet, he will get several sheets that are too long forthe ordinary stitching lap 33 at the end of the blank, Fig. 15'. By heemployment of the double knife, a notch is cut out of the over-lengthblank, indicated in said figure, and when such blank comes to thestitchers the excess may be cutoff with a knife of any sort to make thebox of proper length, thereby saving all sheets which would otherwise belost or have to be trimmed 7 off before going through the regularnotching process.

The shafts 18 rotate in unison and in opposite directions, each shafthaving secured thereto a bevel gear 39 which mesh, respectively, withsimilar gears 4E0 splined on a cross shaft 11, Figs. 1, 3 and 5, mountedin bearing secured to the frame plates 3 and a. Said shaft also carriestwo pulleys 12 and as, about which pass feed belts 4A and as, said beltsextending lengthwise of the machine and about driving belt pulleys 46and 4-? secured to a shaft 48, see Figs. 1, 3 and 6. Said shaft findsits bearings in brackets l9 secured, respectively, to the frame plates 5and 6. Motion is imparted thereto through a belt 50, and belt tighteners51, fulcrumed 0n the shaft serve to keep the belts 44: and 15 taut. A.second pair of feeding belts 52 and 53 underlie the belts 4A, 45, saidsecond pair at the forward or infeed end of the machine passing aboutidler pulleys 5 and 55, respectively, supported upon stub axles carriedby the frame t thedischarge end ported in the lower oortions oi?brackets 49, said shaft being driven by a belt 59. Belt being crossel,shafts d8 and 58 are lriv .i in opposite directions, and, as aconsequence, the adjacent or innermost run of each pair oi the feedingbolts 44, 45., and 52 and 53,

'ra'vel in the same direction from the forward "e c ischarge end of themachine. The

irred forward thereby and period ically bro get to in position for theaction of the shearing blades or knives. To sustain the blanks alongtheir medial line they pass through thc machine a bar 60, Figs; 1, 3 and5, supported lay-uprights 60 is placed intermediate the feed belts andextends lengthwise ofthe machine.

To prevent the blank from. shifting later- L L b its moreover areconstantly driven and the ally and to maintain it in proper operativerelation with the knives edge guides are provided which may take theform of flaring angular shaped members 29 (see more particularly Figs.1, 3, 4e and 11) and are adjustably mounted upon the bars 29 so thatthey may be positioned with reference to each other and to the medialline of the machine to accommodate the width of the blank being operatedupon.

intending lengthwise of the machine and centrally thereof are two bars60 and 61', said bars being sustained by standards 62 and (33, Fig. 5,at the infeed end of the machine and by similar standards 6% and 65,Figs. e and 6, at the discharge end of the machine, lateral stays as 66being provided to brace the standards. The stays at the infeed end aresecured to a block 67, Fig. 3, which in turn is embraced by and securedto the standards 62 and 63, and a second block 68 l -shaped in form isconnected to standards 04 and andto the stay at the discharge end of themachine. Journaled in the horizontal member of the block 68 is a shaft69, said shaft at its outer end carrying a sprocket wheel 70, see moreparticularly Figs. 6 and 8, about which passes a sprocket chain 71, saidchain in turn passing about idlers 72, 73, mounted on an arm 7a carriedby a lever normally drawn down by a spring 76. and about a sprocket 77secured to one end of one of the shafts 18. Shafts 18 are periodicallyrotated, as willpresently appear and as a consequence shaft 69 islikewise periodically rotated. Said shaft 69, see Fig. 8. has secured toits inner end a lifter cam 78 which underlies and cooperates with a rod79 which ismounted for endwise reciprocation in a bearing block 80 andat its upper end bears upon the under face of a head 81 mounted to turnupon a cross pivot pin 82, which pin extends through vertically disposedelongated slots formed in the upper portion of the bearing block 80. The

head block 81 swings about the pin 82 and is normally held in itsvertical position by a spring 83. the head block having attached to itsupper end a stop plate 8e. (Figs. 1,

6 and S) which stands in the path of movement of the blank. The headblock 81 is notched at its lower edge and is adapted to be held in itsvertical position, when the rod 7 9 is upon the lower portion of thecam,

by a fixed lug 84 carried by the block 80 and adapted to enter thenotches. When the parts are in the position shown in full lines in Fig.8. the rod 79 is upon the lower por tion of the cam 78 and consequentlythe spring will hold the rocking head 81 clownwardly in lockingengagement with the lug.

9 t" and so arrest the stop. Then, however, the cam is rotated throughapproximately 360. the rod 79 willbe lifted and the up per end thereofbearing upon the under face of the rocker headSl' will raise the same soas to free it from engagement with the looking lug S t, and when thisdisengagement is effected the blank which is constantly urged forward bythe feed belts will throw the rocker head 81 and the stop bar 84 to theleft and out of the path of the stock.

ll-S above noted. the shafts 18 are periodically rotated. and toeflf'ect such periodic rotation the shaft 41 is likewise periodicallydriven. Said shaft 41 carried a large gear 85 which meshes with a pinion86 mounted upon a shaft 87 (see Fig. 5) which derives its motion from aconstantly rotating memher 88 and an interposed clutch mechanism havinga constantlyrotating element 89 and a shiftable clutch member embodyinga sleeve 90. Theshaft 41 has secured to it a cam 91 and an actuating arm92 (see Figs. 5, 7, S and 9) the cam being adapted to operate upon latchreleasing mechanism while the actuating arm 92 operates upon the clutchshifting device. It is essential, of course, that the shafts 18 whichcarry the knives which notch the stock be in rotation while the stock isarrested by the stop 84 and, consequently, the clutch must be in lockingrelation when the stock is at rest, and, on the other hand, the clutchmust be thrown out and the shafts 18 at rest while the stock is beingfed forward. Fulcrumed between the bars 60 and 61 is a lever 93 providedwith a cross plate 9t adapted when the lever is thrown in a verticalposition to stand in the path of movement of the blank.

The lever at its lower end carries a springpressed. linger 95 whichcontacts with one end of a reciprocating bar 96, the opposite .end ofwhich bar bears against a lever 97 (Figs. 3 and 8) which lever issecured to a shaft 98. Said shaft has secured to it a bail-shapedelement 99 which is normally drawn upwardly by a'spring 100, whichaction causes the lever 97 to always maintain contact with thereciprocating rod 96 and thus through such rod tend to maintain thelever 93 in its vertical position with the cross plate 94 in the path ofmovement of the blank. Said member 99 contacts the lower end of a latchlever 101 fulcrumed upon a fixed portion of the machine, the lever beingheld against the bail 99 through the action of a spring 102. The upperend of said latch lever stands in line with an open ing 103 formed inthe lower portion of an arm 10% of a rockinglever, the opposite end ofthe lever being designated by 105. Said lever is fulcrumed upon avertical pivot pin 106 and the arm 10% is normally thrown inward to theposition shown in Fig. 9 by a spring 107. Said spring surrounds a rod108 The arm 105, as will be seen upon reference to Figs. 7 and 8,extends downwardly and the lower end thereof is curved outwardly.Adjacent the upper end of the arm 105 the lever is provided with aroller 110 adapted to contact with the cam 91, heretofore referred to,said cam serving to rock the lever and to move the member 104; out-'wardly so that the latch lever 101 may pass in rear of the arm 10 1through the action of the spring 102 when the rod 96 is shifted to theleft and the cross plate 94: comes to its vertical position (see Figs. 1and 2). The clutch member 90 is released by the arm 92 which contacts astriker plate 111 secured to the upper end of the swinging yoke 112. Theclutch is thrown into operative relation by the lever arm 105, the lowerouter curved end of which stands in line with the upper end of the yoke112. Actuation is effected through said lever 10%, 105 by the spring 107which throws the arm 10% inwardly and at the same time throws [the lowerend of arm 105 outwardly, swinging the yoke 112 into the position shownin Figs. 7 and 9. When the parts are in the position shown in Fig. 2 theclutch is in its released position and the rod 96 is moved to the left(Fig. 8) at which time the cross plate 91 stands vertically in the pathof the oncoming blank. As the blank contacts the cross plate 94it throwsthe lever 93 downwardly, moves rod 96 to the right, rocks the bailshapedmember 99 through lever 97 and the bail swings the lower end of lever101 to the right withdrawing the upper end of the lever from in rear ofthe lever arm 10 1 and permitting the spring 107 to throw the lever arm1041 inwardly and thereby bring the clutch into operative position. Theblank asit passes from the cross plate 94 comes against the stop 84 andis arrested. Im-

mediately the clutch is thrown into locking relation, the shafts 18carrying the knives will be set in motion and cause the knives to passdownwardly through the stock and again move up to the position shown inFig. 5,, at which time the clutch will again be thrown out of operationthrough the contact of the arm 92 with the plate 111. Prior to thecontact of the arm 92 with the plate 111 cam 91 will have contacted theroll 110 and rocked the lever 105,104, so as to throw the lever arm 105out of the way of the yoke arm 112. At the same time the spring 107 willbe put under compression. Immediately the stock has been cut the cam 78,which has been rotating, will lift the rod 7 9 and release the stopplate Stpermitting the blank to move forward. As the end of the blankpasses free of the cross plate 9 1 the spring 100 will rock the bail 99and permit the latch lever 101 to pass behind the lever 1041, looking itin its open position with the spring 107 under compression.

It will thus be seen that the various parts parallel to each other; aplurality of knives 1 carried by each shaft; a series of fixed shearingblades located in the path of movement of the knives carried by theshafts; and means for feeding ablank over the fixed blades.

2. In a machine for notching blanks, the combination of a pair of shaftsarranged parallel to each other; a plurality of knives carried by saidshaft-s; a series of fixed shearing blades located in the path ofmovement of the knives carried by the shafts; a constantly acting meansto feed the stock to be cut over said fixed blades; means for arrestingsaid stock when brought to proper position; and means for rotating theshafts when the stock is brought to rest.

3. In a machine for notching blanks, the combination of a pair of shaftsarranged parallel to each other; a plurality of knives carried by saidshafts, said knives being arranged in stepped relation aboutsaid shafts;series'of fixed shearing blades located in the path of movement of theknives carried by the shafts; constantly acting means to feed the stockto be out over said fixed blades; means for arresting said stock whenbrought to proper position; and means for rotating the shafts when thestock is brought to rest.

a. In a machine for notching blanks, the combination of a pair of shaftsarranged parallel to each other; a plurality of knives carried by "saidshafts; a series of flexed shearing blades located in the path ofmovement of the knives carried by the shafts;

' constantly acting means to feed the stock to be cut over said fixedblades; means for arresting said stock when brought to proper position;means for rotating the shafts when the stock is brought to rest; andmeans actuated by the stock for causing said last named means tofunction.

5. In a machine for notching blanks, the combination of a pair ofshaft-s arranged parallel to each. other; a plurality of lmives carriedby said shafts; a series of fixed.

shearing blades located in the path. of movement of the knives carriedby the shaft; constantly acting means to feed the stock to be cut oversaid fixed blades; means for arresting said stock when brought to properpo sition; means for rotating the shafts when the stock is brought torest; and means normally standing in the path of movement of the stockand actuated by the movement thereof for causing said last named meansto function. I

6. In a machine for notching blanks, the combination of a pair ofsupporting beams arranged parallel to each other; a pair of similarlyarranged shafts; a series of arms extending from each shaft to theadjacent beam; a shearing blade supported upon each arm; a series ofblades carried by each shaft and adapted to cooperate with the shearingblades; and means for advancing the stock to be cut over the shearingblades.

7. In a machine for notching blanks, the combination of a pair ofsupporting frames; a second pair of such frames arranged oppositethereto; means for adjusting said frames laterally toward and from eachother; a beam carried by each pair of said frames; a shaft carried byeach pair of frames; a series of arms supported by each shaft and theadjacent beam, said arms being adjustable toward and from each other; ashearing blade carried by each arm; and a plurality of knives carried bysaid shafts and adapted as the shafts are rotated to cooperate with theshearing blades to notch the blank. i

8. In a machine for notching blanks, the combination of constantlymoving feed mechanism for the blank; notching mechanism; means forarresting the blank in proper position with reference to said cuttingmechanism while the feed mechanism still continues in movement;actuating mechanism for the cutting mechanism, embodying a clutch; andmeans controlled by the stock for effecting actuation of the clutch asthe blank comes to rest.

9. In a machine for notching blanks, the combination of constantlyoperating feed mechanism for the blank; notching mechanism; means forarresting the blank in proper position with reference to said cuttingmechanism; actuating mechanism for the cutting mechanism, embodying aclutch; and means controlled by the stock for effecting actuation of theclutch as the blank comes to rest.

10. In a machine for notching blaiiks, the combination of two pairs ofoppositely disposed belts between and by which the blanks are fed; meansfor constantly moving said belts; cutting mechanism located to each sideof the belts; a stop device for arresting the blank when the same is inproper position with. reference to said cutting mechanism; meansoperated by the blank to bring the cutting mechanism into operation; andmeans operating in timed relation to. the cutting mechanism to releasethe notched blank.

11. In a machine for notching blanks, the combination of a plurality offixed shearing blades; means for positioning the stock to be cut oversaid blades; a shaft; means for rotating the same; and a plurality ofknives carriedby the shaft and adapted to cooperate with the fixedblades, said knives being arranged in spaced or ofi'set relation aboutthe axis of the shaft.

12. In a machine for notching blanks, the combination of two series ofoppositely arranged fixed shearing blades; a shaft arranged adjacent toeach series; means for rotating said shafts; and a series of knivescarried by each shaft adapted to cooperate with the fixed blades, theknives on each shaft being arranged in spaced or oifset relation aboutthe axis of the shaft.

In testimony whereof I have signed my name to this specification.

JOHN A. MOORE.

